525423662464 has 32 divisors (see below), whose sum is σ = 1047320906040. Its totient is φ = 262566650880.

The previous prime is 525423662461. The next prime is 525423662479. The reversal of 525423662464 is 464266324525.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525423662461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901509 + ... + 1365124.

Almost surely, 2^525423662464 is an apocalyptic number.

It is an amenable number.

525423662464 is a deficient number, since it is larger than the sum of its proper divisors (521897243576).

525423662464 is a wasteful number, since it uses less digits than its factorization.

525423662464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268458 (or 2268446 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 49.

Adding to 525423662464 its reverse (464266324525), we get a palindrome (989689986989).

The spelling of 525423662464 in words is "five hundred twenty-five billion, four hundred twenty-three million, six hundred sixty-two thousand, four hundred sixty-four".